Math it - Logic Game GAME
The game is fun and sometimes hard, but thanks to that you can improve your mathematical skills.
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Android Wear
There is a module for Android Wear included. It is a little easier, because you only have to choose if the displayed answer, under the equation on the screen, is true or false by touching green or red .
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Google Play Games
The game is using Google Play Games. After logging in you can unlock achievemnts and submit scores to leaderboards.